1989 Volvo 740
Engine overheats
Radiator hose cracked or leaking
Check and replace if necessary.
Insufficient coolant
Check and fill coolant, see section "Cooling system"
Fan belt frayed or belt tension incorrect
Replace or adjust tension.
pg. 86 Service diagnosis
Emergency sun roof operation
If, because of an electrical fault (e.g. a blown fuse), it is not possible to operate the sun roof electrically,
then it is possible to operate it manually.
First, using a Phillips-head screwdriver, remove the two screws that secure the sun roof motor cover to
the headlines. Then using a screwdriver, depress the white plastic clutch pin in the center of the motor
screw (see illustration) and turn the screw to close or open the roof as desired.
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